Hi Dazzert318, is this still available?

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I wasn't trying to be offensive, just trying to help.   Electricity supply is very much part of how audio equipment works, a very little bit of money (a lot less than on upgrading gear, more like beer money) and some thought and effort can go a long way.   Example, I found the wall sockets...

Maybe the quality of your power is fine, but I don't think UPSs generally solve mains quality problems.   Even if your UPS supplies pure power, the fact you have other stuff (like wifi router and DSL modem) plugged into the same unit without quarantining filters means they could be polluting...

    I have updated my original link to include further explanatory links.   There are several steps you can take to improve the quality of the mains supply feeding audio equipment. Some people (including me) think it has a beneficial effect on SQ. It's not so crazy as it sounds.  ...

I would consider some mains-related steps. http://www.pinkfishmedia.net/forum/showthread.php?p=2456579

Note the updated measurement (FR comparison) link in post 1 for mod/no-mod. It shows that with the mod the mid-bass is not reduced, you just get additional low bass.   I wouldn't go for such a thing in a loudspeaker, I prefer a gentle roll off, because speakers have room gain which naturally...

Many (not all) DACs lack DSP headroom so for dynamically compressed recordings a small amount of unnecessary extra distortion occurs when played without at least a little digital attenuation. It doesn't matter where, could be in the transport or a DAC digital volume control, -5db is more than...

I could do with more bass, even with the bass port mod.

For me, Nexus 10->Q701 is bit too bright. HTC Sensation->Q701 is warmer, I like it.   So even between "low end" sources, it depends I think.

See post 1 for links to instructions and measurements.

In that case ... Tdockweiler, perhaps the links in post 1 should be updated? Thanks nec3 and tdockweiler.

Very interesting. The FR measurements differ from those in post 1 of this thread - yours show no loss of upper bass/lower mid from the mod, just a boost lower down. Were these measurements repeatable? Thanks, Darren

What amp are you using? No tightness problem with the mod here ...?

Many oversampling DACs need some digital attenuation somewhere (anywhere, in the transport or in the DAC) to render >0db inter-sample peaks correctly. 5db is more than enough for all but rare curiosity recordings. This might be a factor.